Ball-bearing mounting for dandy rolls



Dec. 2, 1930.

P. S. SINCLAIR BALL BEARING MOUNTING FOR DANDY ROLLS Filed Feb. 14, 1930 INVENTOR) Pekl' J. Sinclaz);

I 3 C0. ATTORNEY.

Patented Dec. 1930 UNITED STATES PATENT? This invention relates to improvements in ball bearing mounting for dandy rolls.

An object of the invention is to provide ball bearing means for mounting the dandy 5 roll on a fixed shower pipe.

A further object is to provide means for lubricating the ball bearings directly from the water in a shower pipe.

At the present time, the shower pipe of a dandy roll is loosely mounted in openings in the supporting spiders of the roll. struction is, at the best, a make shift as it usually results in a loose fit causing the pipe to have a play movement in the openings and such a loose pipe fit usually causes a rat- I tling and disagreeable noise. I

dandy rolls which are often constructed ten or more feet in length, the loose pipe mounting is very objectionable. The present invention is, therefore, designed to overcome these and other objections. roll is constructed of considerable length and only supported in bearings at its ends, the middle part of the roll often sags-causing the web of paper to pass through the machine without being properly water-marked. By employing a center ballbearing support for the roll, this sagging objection is removed and a distinct water-mark impression is made in the web of paper.

Referring in detail to the single figure of drawings r 1 designates the usual woven wire fabric of the roll which is suitably secured to the ring members 2, 3 and 4 in any suitable way, as brazing. Each of these members is formed with a cored out or annular recess 5, 6 and 7 in which the ball-race members 8, 9 and 10 are located and secured therein, The balls are indicated at 11. 12, 13 and 14 designate the other, or inner, ball-race rings. 15 designates collars on the inner ball-races g these races to the fixed shower for securin pipe 16.

The collars 15 are of a size and so located in the cored out annular recesses 5, 6,-and 7 as to provide the passageways 17 18, 19 and 20 for the escape of water from the balls. shower pipe is preferably composed of some non-corroding material, as brass. 21 desig- PETER s. SINCLAIR, OF HOLYOKE, MASSACHUSETTS I BALL-BEARING MOUNTING For. DANDY ROLIlS Application filed February 14, 1930. Serial No. 428,340.

nates water outlet openings ball bearings.

This conon the moving web of paper.

Further, with and the hub bearings 22 and site ends.

lVhat I claim is:

When the dandy omca in the shower pipe for permitting the water to enter the recesses 5, 6 and 7 for lubricating each of the By providing an additional ring support 3 at the center of the dandy roll, the wire 1 is maintained true throughout its entire length. The fixed non-corrosive shower pipe 16 provides a structure, in combination with the ball bearings, that is quiet in operation and that constantly lubricates these bearings, and, at the same time, maintains its shape throughout its entire length whereby the water-mark is clearly impressed The water from the openings 21 also enters the annular space between the pipe 16 23 at the oppofor supporting the roll on the tubular memrotatably supporting the roll supplying water to the bearin shaft.

ing water from the tubular bricating the ball bearings. The

her, and means for supplying water from the tubular member to the ball bearing means.

3. In a dandy roll, a fixed tubular shaft, a plurality of ball bearings on the shaft for and means for gs from the said a 4. A mounting for a dandy roll comprising a fixed tubular shaft, a plurality of ball bearings mounted on the shaft, recessed hubs in which the ball bearings are located, the hubs being connected to rings to which the dandy roll fabric is secured, and means for supplymember for lu- 5. A dandy roll mounting comprising a fixed tubular shaft of non-corrosive material, as brass, and formed with water discharge openings, rings formed with recessed hubs for attaching the Woven Wire fabric thereto, the recesses in the hubs being designed for receiving a ball bearing which is supported on the fixed tubular shaft and means for supplying water from the tubular shaft to the ball bearings, as described.

In testimony whereof, I have hereunto signed my name at Springfield, in the county 0 of Hampden, and State of Massachusetts,

this 7th day of December, 1929. 7

PETER S. SINCLAIR. 

